SCH3U September Week 4

1

200

Is CO₃ ^2- polar or non-polar? Explain your answer. If it is polar, draw the vectors and label the δ+ and δ- end

non-polar 

300

Is AlF₃ ionic,  polar covalent or non-polar covalent? Explain your answer. If it is polar, draw the vectors and label the δ+ and δ- end  

ionic 

400

Rank the following in order of LARGEST to SMALLEST atomic radii:   Ti, Ra, Ca 

Ra >  Ca >  Ti

500

Rank the following in order of MOST soluble in water to LEAST soluble: Ni (s),  BrF,  BrCl₅,  C₂H₆ , Copper (II) sulfide

CuS > BrF > BrCl₅ >  C₂H₆ >  Ni (s)

2

300

Which structure shows Iron (II) Oxide?

A

400

Draw and classify phosphorus trichloride as ionic, polar covalent, or non-polar covalent. Draw all dipoles and label any  δ+ and δ- end if applicable 

500

What intermolecular forces does SO₃ ^2- have in water? Draw and list them

H-bonding, ion-dipole, and LDFs 

3

300

Which is the most reactive non-metal and WHY?

F because it has the smallest atomic radius (aside from He - which is an inert gas). 

400

Is NO₃ ^- polar or non-polar? Explain your answer. If it is polar, draw the vectors and  label the δ+ and δ- end  

non-polar due to vectors cancelling out 

500

Rank the following in order of LEAST reactive to MOST reactive:   Si,   Cl,  S,   Ne,   F 

Ne  <  Si  <  S  <  Cl   < F

4

300

Is AlCl₃ ionic,  polar covalent or non-polar covalent? Explain your answer. If it is polar, draw the vectors and  label the δ+ and δ- end  

non-polar due to vectors cancelling out 

400

Draw the Lewis Structure for SO₃ ^2-  and classify it as polar or non-polar. If it is polar, draw the vectors and label the δ+ and δ- end  

polar 

500

What intermolecular forces does AlF₃ have in alcohol like CH₃OH? Draw and list them. 

ion-dipole and LDFs 

5

200

Is BrCl₅ ionic,  polar covalent or non-polar covalent? Explain your answer. If it is polar, draw the vectors and label the δ+ and δ- end

polar covalent 

300

Is HF ionic,  polar covalent or non-polar covalent? Explain your answer. If it is polar, draw the vectors and label the δ+ and δ- end  

ionic 

400

Draw the Lewis Structure for acetate ion and classify it as polar or non-polar. If it is polar, draw the vectors and label the δ+ and δ- end  

500

Rank these structures for CO₃ ^2-  from most stable to least stable 

C, B, A